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View Full Version : Cylinder head porting - how good is OEM?


m1tch_1987
22-04-12, 08:12 AM
Hi all,

I am still working on my SV650 kart, I am just wondering what the cylinder heads are like with regards to finish internally as I might decide to port them a bit for a bit of extra flow (engine will be used for racing rather than road use)

I know in some engines like the LS1 V8 there are a lot of casting inperfections and swirl ramps etc, and they respond well to porting, I just wondered what the OEM cylinder heads are like with regards to flow?